ignorance is bliss

From Longman Dictionary of Contemporary Englishignorance is blissignorance is blissWORRIEDused to say that if you do not know about a problem, you cannot worry about it →ignorance

Examples from the Corpus

ignorance is bliss• But then it's probably a case of ignorance is bliss.• Thus, for animals in the absence of suffering, ignorance is bliss.• Truth, therefore, is socially fractious, while ignorance is bliss.